Description
Designed for high-precision, non-contact dynamic and static measurements, the Bently Nevada 330101-00-27-15-02-00 proximity probe monitors vibration, position, and speed in critical rotating machinery. As a key sensing element within the 3300 XL 8 mm series, this eddy current probe converts distance variations between the probe tip and the target shaft into a proportional electrical signal when paired with a matching Proximitor sensor.
Features
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Optimized Thread Setup: Standard 3/8-24 UNF threaded body without unthreaded length for maximum physical mounting adjustability.
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ClickLoc Connector: Equipped with a miniature coaxial ClickLoc connector to ensure reliable, positive-locking signal contact without field-assembly failures.
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Rugged Material Engineering: Features a high-performance polyphenylene sulfide (PPS) tip capable of withstanding harsh, oil-rich turbine environments.
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Standard Cable Construction: Optimized cable flexibility without heavy armor, perfect for standard conduit runs.
Applications
- Steam and gas turbine shaft dynamic radial vibration monitoring
- Centrifugal compressor thrust (axial displacement) position tracking
- High-speed industrial fan and blower shaft dynamics analysis
- Boiler feed pump rotor position monitoring
Technical Specifications Table
| Manufacturer |
Bently Nevada |
| Model Code |
330101-00-27-15-02-00 |
| Series |
3300 XL 8 mm Proximity Probes |
| Thread Size |
3/8-24 UNF |
| Unthreaded Length |
0.0 in |
| Overall Case Length |
2.7 in (69 mm) |
| Total Length |
1.5 meters (4.9 feet) |
| Connector Option |
Miniature coaxial ClickLoc connector, standard cable |
| Agency Approval |
Not required (Standard environment) |
| Net Weight |
0.323 kg |
| Shipping Weight (Calculated) |
1.500 kg |
| Country of Origin |
United States (U.S.A.) |
Connections and Interfaces
The proximity probe uses a coaxial interface architecture to transmit raw RF and DC signals to the monitoring system:
| Interface Element |
Physical Form |
Functional Assignment |
| Inner Conductor |
Coaxial Core |
RF signal transmission and DC bias voltage supply pathway |
| Outer Shield |
Braided Return |
Signal return ground path and high-frequency EMI shielding |
| ClickLoc Connector |
Coaxial Lock-Ring |
Secure physical connection to the system's extension cable |
Alternative Models & Compatibility
When deploying the 330101-00-27-15-02-00, ensure it is integrated within a matched Bently Nevada 3300 XL system. Probe electrical length (1.5 meters) must correspond with the appropriate extension cable (e.g., 3.5-meter extension cable) to construct a complete 5.0-meter system. Mixing components from 5.0-meter and 9.0-meter systems will result in severe calibration and output deviations.
Application Pitfalls & Engineering Notes
To prevent reading errors caused by magnetic field interference (cross-talk), do not route probe cables alongside high-voltage AC electrical lines. The probe tip must clear surrounding non-target metal components by at least three probe-tip diameters (24 mm) to avoid inductive coupling losses.
Commissioning & Wiring Tips
Before final coupling, clean the ClickLoc connectors with pure isopropyl alcohol. Once clean, lock the connector securely. To guarantee long-term operation inside fluid-sprayed areas, wrap the connector joint in oil-resistant fluoropolymer tape or protect it with Bently Nevada’s proprietary connector sleeve protectors.
Installation Guidelines
CRITICAL WARNING: Verify the host machinery is completely shut down and locked out before beginning mechanical installation. Avoid contact with raw probe-tip assemblies during power-on states to prevent static charge shocks or sensor driver damage.
1
Mechanical Mounting: Thread the probe into the mounting bracket or casing by hand to ensure smooth thread mating without binding.
2
Gap Setting: Connect the probe to a digital voltmeter to measure the output voltage of the Proximitor sensor. Set the physical gap so the voltage matches the system midpoint (typically -10.0 VDC).
3
Locknut Torquing: Tighten the probe locknut securely to the mounting bracket to lock the setting, ensuring the sensor does not drift during machine startup.